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#ifndefAudioProcessor_h
#defineAudioProcessor_h
namespace WebCore {
class AudioBus;
// AudioProcessor is an abstract base class representing an audio signal processing object with a single input and a single output,
// where the number of input channels equals the number of output channels. It can be used as one part of a complex DSP algorithm,
// or as the processor for a basic (one input - one output) AudioNode.
class AudioProcessor {
public:
AudioProcessor(double sampleRate)
: m_initialized(false)
, m_sampleRate(sampleRate)
{
}
virtual ~AudioProcessor() { }
// Full initialization can be done here instead of in the constructor.
virtual void initialize() = 0;
virtual void uninitialize() = 0;
// Processes the source to destination bus. The number of channels must match in source and destination.
virtual void process(AudioBus* source, AudioBus* destination, size_t framesToProcess) = 0;
// Resets filter state
virtual void reset() = 0;
virtual void setNumberOfChannels(unsigned) = 0;
bool isInitialized() const { return m_initialized; }
double sampleRate() const { return m_sampleRate; }
protected:
bool m_initialized;
double m_sampleRate;
};
} // namespace WebCore
#endif // AudioProcessor_h